Quote:
Originally Posted by maxhifi
I think that it should match the RCA VTVM schematic found in their tube manuals (for example, the RC-26) close enough to be useful, it uses the same tubes, and looks a lot like an RCA of the era. Probably the main problem is those grey electrolytic and paper capacitors, I bet if you change all of those and clean the switches it will work just fine.
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They all seemed to use the same tube compliment.
The Olson model shown was actually a lot better than some of their earlier VTVM's, that were made by Accurate Instrument, which was some real junk.
My first VTVM was a Knight-Kit with a higher quality meter movement, made by Phaostron. Same tube compliment with a Mullard 12AU7.
I couldn't get excited about the probes that came with it, so I bought an Eico uniprobe.
I still have it, for like 54 years.
